1/* $NetBSD: eventlib.h,v 1.3 2009/04/12 17:07:16 christos Exp $ */ 2 3/* 4 * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (C) 1995-1999, 2001, 2003 Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* eventlib.h - exported interfaces for eventlib 21 * vix 09sep95 [initial] 22 * 23 * Id: eventlib.h,v 1.7 2008/11/14 02:36:51 marka Exp 24 */ 25 26#ifndef _EVENTLIB_H 27#define _EVENTLIB_H 28 29#include <sys/types.h> 30#include <sys/uio.h> 31#include <sys/time.h> 32#include <stdio.h> 33 34#ifndef __P 35# define __EVENTLIB_P_DEFINED 36# ifdef __STDC__ 37# define __P(x) x 38# else 39# define __P(x) () 40# endif 41#endif 42 43/* In the absence of branded types... */ 44typedef struct { void *opaque; } evConnID; 45typedef struct { void *opaque; } evFileID; 46typedef struct { void *opaque; } evStreamID; 47typedef struct { void *opaque; } evTimerID; 48typedef struct { void *opaque; } evWaitID; 49typedef struct { void *opaque; } evContext; 50typedef struct { void *opaque; } evEvent; 51 52#define evInitID(id) ((id)->opaque = NULL) 53#define evTestID(id) ((id).opaque != NULL) 54 55typedef void (*evConnFunc)__P((evContext, void *, int, const void *, int, 56 const void *, int)); 57typedef void (*evFileFunc)__P((evContext, void *, int, int)); 58typedef void (*evStreamFunc)__P((evContext, void *, int, int)); 59typedef void (*evTimerFunc)__P((evContext, void *, 60 struct timespec, struct timespec)); 61typedef void (*evWaitFunc)__P((evContext, void *, const void *)); 62 63typedef struct { unsigned char mask[256/8]; } evByteMask; 64#define EV_BYTEMASK_BYTE(b) ((b) / 8) 65#define EV_BYTEMASK_MASK(b) (1 << ((b) % 8)) 66#define EV_BYTEMASK_SET(bm, b) \ 67 ((bm).mask[EV_BYTEMASK_BYTE(b)] |= EV_BYTEMASK_MASK(b)) 68#define EV_BYTEMASK_CLR(bm, b) \ 69 ((bm).mask[EV_BYTEMASK_BYTE(b)] &= ~EV_BYTEMASK_MASK(b)) 70#define EV_BYTEMASK_TST(bm, b) \ 71 ((bm).mask[EV_BYTEMASK_BYTE(b)] & EV_BYTEMASK_MASK(b)) 72 73#define EV_POLL 1 74#define EV_WAIT 2 75#define EV_NULL 4 76 77#define EV_READ 1 78#define EV_WRITE 2 79#define EV_EXCEPT 4 80 81#define EV_WASNONBLOCKING 8 /* Internal library use. */ 82 83/* eventlib.c */ 84#define evCreate __evCreate 85#define evSetDebug __evSetDebug 86#define evDestroy __evDestroy 87#define evGetNext __evGetNext 88#define evDispatch __evDispatch 89#define evDrop __evDrop 90#define evMainLoop __evMainLoop 91#define evHighestFD __evHighestFD 92#define evGetOption __evGetOption 93#define evSetOption __evSetOption 94 95int evCreate __P((evContext *)); 96void evSetDebug __P((evContext, int, FILE *)); 97int evDestroy __P((evContext)); 98int evGetNext __P((evContext, evEvent *, int)); 99int evDispatch __P((evContext, evEvent)); 100void evDrop __P((evContext, evEvent)); 101int evMainLoop __P((evContext)); 102int evHighestFD __P((evContext)); 103int evGetOption __P((evContext *, const char *, int *)); 104int evSetOption __P((evContext *, const char *, int)); 105 106/* ev_connects.c */ 107#define evListen __evListen 108#define evConnect __evConnect 109#define evCancelConn __evCancelConn 110#define evHold __evHold 111#define evUnhold __evUnhold 112#define evTryAccept __evTryAccept 113 114int evListen __P((evContext, int, int, evConnFunc, void *, evConnID *)); 115int evConnect __P((evContext, int, const void *, int, 116 evConnFunc, void *, evConnID *)); 117int evCancelConn __P((evContext, evConnID)); 118int evHold __P((evContext, evConnID)); 119int evUnhold __P((evContext, evConnID)); 120int evTryAccept __P((evContext, evConnID, int *)); 121 122/* ev_files.c */ 123#define evSelectFD __evSelectFD 124#define evDeselectFD __evDeselectFD 125 126int evSelectFD __P((evContext, int, int, evFileFunc, void *, evFileID *)); 127int evDeselectFD __P((evContext, evFileID)); 128 129/* ev_streams.c */ 130#define evConsIovec __evConsIovec 131#define evWrite __evWrite 132#define evRead __evRead 133#define evTimeRW __evTimeRW 134#define evUntimeRW __evUntimeRW 135#define evCancelRW __evCancelRW 136 137struct iovec evConsIovec __P((void *, size_t)); 138int evWrite __P((evContext, int, const struct iovec *, int, 139 evStreamFunc func, void *, evStreamID *)); 140int evRead __P((evContext, int, const struct iovec *, int, 141 evStreamFunc func, void *, evStreamID *)); 142int evTimeRW __P((evContext, evStreamID, evTimerID timer)); 143int evUntimeRW __P((evContext, evStreamID)); 144int evCancelRW __P((evContext, evStreamID)); 145 146/* ev_timers.c */ 147#define evConsTime __evConsTime 148#define evAddTime __evAddTime 149#define evSubTime __evSubTime 150#define evCmpTime __evCmpTime 151#define evTimeSpec __evTimeSpec 152#define evTimeVal __evTimeVal 153 154#define evNowTime __evNowTime 155#define evUTCTime __evUTCTime 156#define evLastEventTime __evLastEventTime 157#define evSetTimer __evSetTimer 158#define evClearTimer __evClearTimer 159#define evConfigTimer __evConfigTimer 160#define evResetTimer __evResetTimer 161#define evSetIdleTimer __evSetIdleTimer 162#define evClearIdleTimer __evClearIdleTimer 163#define evResetIdleTimer __evResetIdleTimer 164#define evTouchIdleTimer __evTouchIdleTimer 165 166struct timespec evConsTime __P((time_t sec, long nsec)); 167struct timespec evAddTime __P((struct timespec, struct timespec)); 168struct timespec evSubTime __P((struct timespec, struct timespec)); 169struct timespec evNowTime __P((void)); 170struct timespec evUTCTime __P((void)); 171struct timespec evLastEventTime __P((evContext)); 172struct timespec evTimeSpec __P((struct timeval)); 173struct timeval evTimeVal __P((struct timespec)); 174int evCmpTime __P((struct timespec, struct timespec)); 175int evSetTimer __P((evContext, evTimerFunc, void *, struct timespec, 176 struct timespec, evTimerID *)); 177int evClearTimer __P((evContext, evTimerID)); 178int evConfigTimer __P((evContext, evTimerID, const char *param, 179 int value)); 180int evResetTimer __P((evContext, evTimerID, evTimerFunc, void *, 181 struct timespec, struct timespec)); 182int evSetIdleTimer __P((evContext, evTimerFunc, void *, struct timespec, 183 evTimerID *)); 184int evClearIdleTimer __P((evContext, evTimerID)); 185int evResetIdleTimer __P((evContext, evTimerID, evTimerFunc, void *, 186 struct timespec)); 187int evTouchIdleTimer __P((evContext, evTimerID)); 188 189/* ev_waits.c */ 190#define evWaitFor __evWaitFor 191#define evDo __evDo 192#define evUnwait __evUnwait 193#define evDefer __evDefer 194 195int evWaitFor __P((evContext, const void *, evWaitFunc, void *, evWaitID *)); 196int evDo __P((evContext, const void *)); 197int evUnwait __P((evContext, evWaitID)); 198int evDefer __P((evContext, evWaitFunc, void *)); 199 200#ifdef __EVENTLIB_P_DEFINED 201# undef __P 202#endif 203 204#endif /*_EVENTLIB_H*/ 205 206/*! \file */ 207